Mold for use in building walls



H. V. P. NIE-LSEN. MOLD FOR USE IN'BUIL'Dl'NG WALLS.

APPucmoN man rss. 12. 1911.

Patented Nov. 4, 1919.

A 4 7/ Zr l 6 2u. 1 d 7 n x W m i Fd 6 .y W 3 uw 5 w Il Il.. av 2 W Q .2dr@ w I w w f a? o v n Je. or w W 1 3 1 W w HEINRICH V. P. NIELSEKN, OFBOSTON, MASSACHUSETTS.

MOLD FOR USE IN BUILDING WALLS.

vSpecification'of Letters Patent. I, Patented NOV. 4, 1919.

Application filed February 12, 1917. Serial No. 147,999.'

To all whom it may concern:

Be it known that `I,`HEINR1CH V; P. NIEL- SEN, a citizen of the' UnitedStates, residing at Boston, in the county of Suffolk and State ofMassachusetts, have invented certain'ne'w and useful Improvements inMolds for Use in. Building Walls, y.of which* the following is aspecification.

My inventionrelates to the art of constructing walls from (plasticmaterial, `particularly cement-walls, vand it hasl for )its object toymake it possible to' erect 'a wall of Vthe character describedlwith?'accuracy and despatch and to provide simple and `eliicient meansfor use 'in'constructing the same.-

To thesel ends'my invention consists; first,

lof the improved means for use in' constructing walls Vfrom cement andthel like vand second, in 'the novellmethodemployed -in constructing awailf this kind in accordancewith myv invention,-all asset 'forth in thefollowing description and particularly pointed yout and defined in theclaims at the close thereof. i

In the accompanying drawings:

Figure 1 is a perspective view of a par'.

tially constructed wall showing my new api paratus applied thereto.

Fig. 2 is a plan view of a portion of the apparatus shown in Fig. 1.

Fig. 3 is a' section on line 3 3 of Fig. 2.

Fig. 4: is a perspective view of one of the transverse ties hereinafterdescribed.

Having reference to the drawings W, l/V represent the upper portion of apartially built cement wall having an air space 'w between the twosections IV lV of the wall. Incorporated in each section W of the wallis a plurality of upright reinforcing rods or bars fw arranged in pairsand a plurality of ties we through each of which extend two of the rodsAw.

The wall is built in courses with the aid of one or more molds eachcomprising essentially two outside walls 1 and 1a each of which isprovided at its top edge with dowels or studs 3 and at its bottom edgewith a corresponding number of dowels or studs 4 each arranfredimmediately below one of the dowels 3. Fliese dowels 3 and L1 arepreferably the ends of flat metal bars fastened by screws or otherwiseto the inner sides of the walls 1 and 1a.

In starting to build a wall the two walls 1 and l of the mold are placedon edge upon thel ground with a tie wz applied to each 'pairfof dowelsor studs 4 at the bottom of the mold, said ties, resting on the ground.

Each tie tu2 is provided near each end with a hole or perforation 'w3 toreceive the dowels or studs i and, between said holes w3, with t,woother h'olesw4L each adapted to receive an upright reinforce rod ws.After the dowels or studsA 4 have been engaged with 'ithe severalties'w2 that are placed under the Vwalls v1 and -1a a correspondingnumber of ties 'wz' are -slipped' down over the upright rein-forcerods'fw and'lowered thereon until vthey are engaged'with the dowels orstuds 3 *at the upperfedgesof the sidewalls 1 and "ll It will thusv bevclear that the ties (wz serve as, rigid connections'between the topedges 'fof the"sid'e.;"wal1,sV 1 and 1 and the bottom edges thereof. Inorder, however, to prevent jsidewise"displacement or movement of thesidewalls land lfand hold them rigidly upright, each oflsaid walls isprovided upon itsl outerside with two pairs of straps 6,Y one pairnear-each' end, and each pair adapted to receive a post which may bemade from wood.

" When the irst or bottom course of the wall is being cast the posts 7may be driven into `the ground but on the other courses wedges 8 will bedriven into position be tween the lower ends of said posts and thecourse to the top of which the mold is applied. lVith the posts 7properly in position the side walls 1 and 1a of the mold and thereinforce bars w are held in proper upright positions.

The mold herein shown is adapted to produce a wall comprising the twosections IV and IV separated by the air space to and for this reason itis made to include a partition 9 provided at its top edge with dowels orstuds 10 spaced the same as the dowels 3, and at its bottom edge withdowels or studs 11 spaced the same as the dowels 1i. Also each tie lw2is made at its middle with a third dowel perforation w3, the middleperforations w3 of the ties under the mold receiving the dowels 11 andthe middle perforations w3 of the ties w2 on top of the mold receivingthe dowels 10.

The ends of the mold are closed by end walls l2 each provided at itsupper and lower ends with dowels 13 engaging ties to2 above and belowthe side walls and partition of the mold.

lifted arey lowered into freshly cast wall and are `ater used to re--on' thereinforoerods Vw far enou h to disengage them from thedowels atzt e 'top of the mold and then the parts of the latter are removed,after |which the ties that were osition 011- the ceive Ithe dowels 4 and11 of the mold when the latter is 17e-assembled on the wall t0 cast thenext course above.

:It will thus' be seen that the important feature of my mold is that itsparts are held in proper relative position by the ties-wz,

that the mold holds the topmost set of ties in the positions they arevto occupy 11 the wall andthat these mold holding ties becomeincorporated in the'wall-fand serve .as transverse binders andreinforcin members, as well as a .means for coupling ,t e` lower. .edgesof the walls ofthe mold to the top of tthe wall being constructed. v

The perforated ends of the ties w2 being near the exterior of the `wallunder construction are accessible so that they can bensed as -anchoragesfor supporting a staging if desired.

My improved mold is 4of lsimple and inexpensive iconstruction and by itsaid unskilled Copies of this patent may be obtained for workmen-canrapidly erect a wall of cement or the like.

In the, accompanying drawings I have shown my improved mold as angularin shape so as to be used in casting the portions of the two wallsadjacent .a c'orner at which they meet but, obviously the mold may bemade of :any desired shape.

What I elaim is:

l. A molding outfit of the character described comprising a single pairof vertical side-wall members; two sets of ties, one set lfor connectinthe upper portions of said side wall mem ers and the other set forconnecting the lower portions of said side wall members, and Studs onsaid side wall mem- -bers immediately adjacent the upper and lower edgesthereof for separably engaging with the ends of said ties.

2. A moldingoutfit of the character described comprising a Isingle pairof yvertical side Wall membeisytwo sets of ties, one set for connectionrthe iupper portions of said vside :Wall lmem ers and ythe other set'forconnecting thelower portions of said side wall members; studs on saidside wall members immediately .adjacent the upper and lower edgesthereof yfor separably engaging with the ends of said ties, land endWalls for closin the ends of them'old.

v n...testimony whereof I have afxed my signature. ,v

HETNRICH vv.. i?. NmLsEN.

five `cents each, by addressing the Commissioner of Patents, Washington,JJ. C.

